1. She looked at him but didn't say anything. (Correct)(Incorrect)
She looked at him doubtfully but didn't say anything. (Correct)
2. She looked but didn't say anything. (Correct)(Incorrect)
She looked doubtful but didn't say anything. (Correct)
3. He strongly that they would be able to find the thief. (Correct)(Incorrect)
He strongly doubted that they would be able to find the thief. (Correct)
4. It was without the most important of his achievements. (Correct)(Incorrect)
It was without doubt the most important of his achievements. (Correct)
5. I will the task for beginning students. (Correct)(Incorrect)
I will simplify the task for beginning students. (Correct)
6. It is a question. Why don't you just answer it? (Correct)(Incorrect)
It is a simple question. Why don't you just answer it? (Correct)
7. The of the solution to their problem was amazing. (Correct)(Incorrect)
The simplicity of the solution to their problem was amazing. (Correct)
8. To his great , she declined his invitation. (Correct)(Incorrect)
To his great disappointment , she declined his invitation. (Correct)
9. Would you to stay here or to go to the garden? (Correct)(Incorrect)
Would you prefer to stay here or to go to the garden? (Correct)
10. The first spelling test was easy. (Correct)(Incorrect)
The first spelling test was surprisingly easy. (Correct)